Omega Seamaster Diver 300m Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces

Reference 210.30.42.20.01.003

About this watch

The Omega Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces is a luxury watch that embodies the essence of precision, style, and adventure. Its sleek black ceramic bezel rotates for precise timing, while its round shape gives it a classic vibe. The black dial features stick and dot indexes for optimal readability, protected by a sapphire crystal. At its heart lies the Omega caliber 8806 movement, certified as a Master Chronometer with resistance to magnetic fields up to 15,000 gauss. With a water resistance rating of 300 meters and a limited edition of only 50 units produced, this watch is not just a timekeeper but also a collector's item. Its stainless steel bracelet is both sturdy and comfortable, making it perfect for all-day wear. Whether you're exploring the ocean or enjoying a night out, this watch ticks all the right boxes.

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Key Features

Omega caliber 8806 movement
300m water resistance
Limited edition of only 50 units produced
Sapphire crystal protection
Stainless steel bracelet
Master Chronometer certification
Resistance to magnetic fields up to 15,000 gauss

Specifications

Brand

Omega

Family

Seamaster Diver 300m

Model

Seamaster Diver 300M Master Co-Axial 42 Swiss Armed Forces

Reference

210.30.42.20.01.003

Movement

8806

Movement Features

Hours, Minutes, Seconds
Chronometer, Co-Axial Escapement

Case

Stainless Steel 42mm

Dial Color

Black

Crystal

Sapphire

Water Resistance

300

Current Listings

Omega Seamaster Diver 300M 007 NTTD

Omega - 210.90.42.20.01.001 · $9,750

Selling a Omega Seamaster NTTD edition in excellent condition with some minor cosmetic damage.

Condition: Excellent (small scratch on clasp and a few light scratches on case back)
Case Size: 42mm
Water Resistance: 300m

Posted at

Jan 28, 2026, 11:41 PM

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Omega Seamaster Diver 300M – 212.30.41.20.01.003 – 2017 – Full Set – $3,700 + Shipping

Omega - 212.30.41.20.01.003 · $3,700

Year: 2017

Posted at

Jan 28, 2026, 5:48 PM

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Omega Seamaster Diver 300M White Dial – Ref. 210.32.42.20.04.001 (2021) – Full Set – $4,700

Omega - 210.32.42.20.04.001 · $4,700

This Omega Seamaster Diver 300M features a white dial and was produced in 2021.

Year: 2021

Posted at

Jan 28, 2026, 5:38 PM

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Omega Seamaster Diver 300M - 41mm Ceramic Blue - No Wave - Complete Set

Omega - 212.30.41.20.03.001 · $3,200

This Omega Seamaster Diver 300M Co-Axial Chronometer features a 41mm stainless steel case, blue ceramic bezel, and flat/lacquered blue dial with an understated look. It has an Omega Co-Axial calibre 2500 automatic movement and is rated to 300 m of water resistance.

Condition: Excellent
Case size: 41mm diameter
Movement: Omega Co-Axial calibre 2500 automatic movement
Water resistance: 300m depth rating

Posted at

Jan 28, 2026, 4:46 PM

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2025 OMEGA Seamaster Diver 300M 42mm Green Dial “SEAWEED” 210.30.42.20.10.001

OMEGA - 210.30.42.20.10.001 · $4,700

A 2025 OMEGA Seamaster Diver 300M in a 42mm Green Dial "SEAWEED" configuration, featuring an Omega 8800 movement and various accessories.

Condition: Excellent, light signs of wear
Movement: Omega 8800

Posted at

Jan 28, 2026, 4:37 PM

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OMEGA Seamaster Diver 300M 42mm White Dial 210.30.42.20.04.001 | Full Set

OMEGA - 210.30.42.20.04.001 · $4,500

A 2020 OMEGA Seamaster Diver 300M with a white dial, 42mm case size, and excellent timekeeping performance.

Condition: Outstanding condition, with only a few faint hairline marks on the bracelet from light wear.
Movement: Omega 8800
Bracelet size: 8.25 inches, will fit wrists up to approximately 8.25"
Box condition: [object Object]

Posted at

Jan 28, 2026, 4:24 PM

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2023 Omega Seamaster Diver 300m White Dial on Bracelet 210.30.42.20.04.001 B+P

Omega - 210.30.42.20.04.001 · $4,600

This watch features a stunning white wave-pattern dial paired with a black ceramic bezel, and is equipped with Omega's Co-Axial Master Chronometer Caliber 8800 movement, offering exceptional precision, anti-magnetic protection, and 300-meter water resistance.

Condition: Excellent
Movement: Self-winding Mechanical
Case material: Stainless Steel
Bezel material: Black Ceramic

Posted at

Jan 28, 2026, 10:09 AM

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1999 Midsize Omega Seamaster Diver 300M, with box and papers! - $2450 shipped!!

Omega - 2551.80 · $2,450

This listing is for a genuine Midsize Omega Seamaster Diver 300M from 1999, featuring an automatic movement and 36mm case size.

Condition: 9/10 with minor scratches
Movement: Cal. 1120 automatic
Case size: 36mm diameter

Posted at

Jan 28, 2026, 7:04 AM

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Omega Seamaster Diver 300M 210.32.42.20.01.003 with Box, Papers, and aftermarket bracelets

Omega - 210.32.42.20.01.003 · $4,999

A Omega Seamaster Diver 300M is being sold with its original box, papers, and aftermarket bracelets. The watch has some minor scuffs on the lugs but overall is in great condition.

Condition: 9/10 with slight wear on lugs
Box: yes
Papers: yes
Bracelets: 2 aftermarket mesh bracelets

Posted at

Jan 26, 2026, 8:32 PM

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